I purchsed these cable some years back and really felt they improved my system which was comprised of all Adcom components and Energy Pro Monitor Speakers. I did not use them bi-wired but still have a 12 foot pair. I did and still used Tara Quantum III interconnects and have been very pleased. However, the RCA connections are getting lose for some reason. I am currently experiementing with DH Labs Silver Sonic Q-10 bi-wired speaker cables which replace my Tara RSC Prime bi-wired cables. I am trying the BL-1 Silver Sonic interconnects, as well, between my Arcam 73 CD Player and Adcom Preamp. They both sound fantastic- very open and detailed.